General Electric IS200TRLYH1B Mark VIe

IONet

Switches manage the communication traffic to eliminate collisions and increase network determinism. There are no Ethernet collisions on the IONet. The controller and I/O modules communicate over the IONet, a 100 MB Ethernet network that is available in non-redundant, dual redundant, and triple redundant configurations. Ethernet Global Data (EGD) and other protocols are used for communication. EGD is based on the UDP/IP standard (RFC 768). EGD packets are broadcast at up to the system frame rate from the controller to the I/O modules, which respond with input data. IEEE 1588 Precision Time Protocol is used on the IONet to time-align the I/O pack data.

I/O Modules

Analog I/O modules typically contain 10 analog inputs and 2 analog outputs. 8 inputs can be configured for 1-5Vdc, ±5Vdc, ±10Vdc, or 0-20ma with jumpers on the module, and the remaining 2 inputs can be configured for 0-20ma or +/-1ma with 250 Ω / 5,000 Ω burden resistors respectively. For applications with a high concentration of analog outputs, dedicated output modules are available for 0-20ma and others for 0-20ma / 0-200ma selection for valve actuators (800 Ω / 50 Ω output loads respectively). Transducers can be externally powered (differential inputs) or internally powered from the I/O module with +24Vdc current limited per point. I/O modules are available with point isolation for externally powered transducers.

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